Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Martin W. Ritchie; Kathleen A. Harcksen
    Date: 2005
    Source: In: Ritchie, Martin W.; Maguire, Douglas A.; Youngblood, Andrew, tech. coordinators. Proceedings of the Symposium on Ponderosa Pine: Issues, Trends, and Management, 2004 October 18-21, Klamath Falls, OR. Gen. Tech. Rep PSW-GTR-198. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 81-93
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (494.0 KB)

    Description

    This paper describes implementation and early results of a large-scale, interdisciplinary experiment in the Goosenest Adaptive Management Area in northeastern California. The study is designed to investigate development of late-successional forest attributes in second-growth ponderosa pine stands. The experiment has four treatments replicated five times and encompasses 1600 hectares, including controls. Complete treatment implementation took five years, including application of prescribed fire. Initial post-treatment measurements were conducted in 2002. Change in quadratic mean diameter averaged 12.5 cm among thinned stands. Initial estimates of post-treatment growth from remeasured diameters indicate little immediate impact of treatments on individual tree growth. However increment cores from dominant trees showed an increase in diameter growth by 11 to 14 percent in the treated plots during the first three years after treatment. Quadratic mean diameter in thinned stands was still well below that reported in reference old-growth stands. Among those stands treated with a targeted change in species composition, the mean treatment effect was an increase of 16 percent in proportion of pine basal area, with a range from 6 to 29 percent. The control treatment and thin from below treatment showed no significant change in species composition. The initial application of prescribed fire resulted in little mortality (less than 1 percent for large trees) and had no immediate impact on the diameter distribution. Logging damage observed on residual trees varied between 2 and 6 percent, depending on treatment and tree size.

    Publication Notes

    • You may send email to rmrspubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Ritchie, Martin W.; Harcksen, Kathleen A. 2005. Accelerating development of late-successional features in second-growth pine stands of the Goosenest Adaptive Management Area. In: Ritchie, Martin W.; Maguire, Douglas A.; Youngblood, Andrew, tech. coordinators. Proceedings of the Symposium on Ponderosa Pine: Issues, Trends, and Management, 2004 October 18-21, Klamath Falls, OR. Gen. Tech. Rep PSW-GTR-198. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 81-93

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page